Removes the environment variable @variable from the environment of
processes launched from this launcher.
The variable name should be in the GLib file name encoding. On UNIX,
this means that they can be arbitrary byte strings. On Windows, they
should be in UTF-8.
Removes the environment variable @variable from the environment of processes launched from this launcher.
The variable name should be in the GLib file name encoding. On UNIX, this means that they can be arbitrary byte strings. On Windows, they should be in UTF-8.